Open Source Alternatives to Popular Software

Wire

GPL-3.0

A comprehensive collaboration platform offering end-to-end encrypted messaging, file sharing, and video calls with enterprise-grade security and compliance features.

Workadventure

Unknown

Create customizable virtual workspaces for remote teams to interact naturally, host events, and collaborate through spontaneous conversations and scheduled meetings.

Zulip

Apache-2.0

Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes.

Cal.com

MIT

Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.

Chobble Tickets

Unknown

Event ticketing platform with flat £50/year fee, no commission or booking charges. Open source, encrypted, self-hostable with unlimited events and tickets.

Easy!Appointments

GPL-3.0

Self-hosted appointment scheduling solution with Google Calendar sync, customizable workflows, and no monthly fees. Perfect for healthcare, salons, and service businesses.

Hi.Events

Unknown

Hi.Events is a comprehensive platform for event management and online ticket sales, offering features like QR code check-in, custom ticket types, and embeddable widgets.

Rallly

AGPL-3.0

A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.

Documenso

AGPL-3.0

Streamline your document workflows with a powerful, privacy-focused e-signature platform that puts you in control of your data.

Docuseal

AGPL-3.0

DocuSeal is an open source e-signature platform that provides fast, easy document signing with developer-friendly API integration.

OpenSign

AGPL-3.0

A powerful, open-source e-signature solution offering customization, integration, and enhanced security for businesses of all sizes.

Paperless-home

GPL-3.0

A powerful open-source solution for managing, organizing, and searching your digital documents with ease and efficiency.

Papermark

AGPL-3.0

Secure, customizable platform for sharing documents and tracking engagement. Perfect for sales teams, marketers, and businesses.

Papra

AGPL-3.0

A document management platform that helps you archive, organize, and search files with email ingestion, tagging capabilities, and powerful search functionality.

Seafile

Unknown

Open source file sync and sharing platform with custom properties, AI automation, collaborative editing, and enterprise-grade security for teams.

Wraft

AGPL-3.0

Complete document lifecycle management with automated generation, approval workflows, e-signatures, and branded templates. Create professional documents at scale.

Formizee

Apache-2.0

Formizee is an open-source platform for designing, building, and analyzing forms, offering an affordable all-in-one solution

HeyForm

AGPL-3.0

A versatile form builder for crafting custom surveys, quizzes, and data collection tools with advanced features and integrations.

Ikiform

MIT

Build beautiful, interactive forms with AI assistance. Open-source alternative to Google Forms with unlimited submissions, advanced analytics, and seamless integrations.

LimeSurvey

Unknown

LimeSurvey is a powerful open-source tool for creating customizable online surveys, polls, and questionnaires.

OpnForm

AGPL-3.0

A versatile open-source form builder for collecting data, managing submissions, and integrating with your favorite tools.

Palform

AGPL-3.0

Build end-to-end encrypted forms with enterprise-grade features, no coding required. Protect sensitive data and enhance user trust.

Router.so

AGPL-3.0

Router.so simplifies form management and lead capture with custom endpoints, schema definition, and seamless integrations for marketing-focused developers.

Openlane

Apache-2.0

Automates evidence collection, control tracking, and audit reporting across SOC 2, ISO 27001, NIST 800-53, GDPR, and 12+ other frameworks in one platform.